package com.hermes.comics.utils;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipUtils {

  private static int BUFFER_SIZE = 1024;

  private ZipUtils() { }

  public static void zip(String[] files, String zipFile) {
    BufferedInputStream origin = null;
    try { 
    ZipOutputStream out = new ZipOutputStream(
        new BufferedOutputStream(new FileOutputStream(zipFile)));
    byte data[] = new byte[BUFFER_SIZE];
      for (int i = 0; i < files.length; i++) {
        FileInputStream fi = new FileInputStream(files[i]);    
        origin = new BufferedInputStream(fi, BUFFER_SIZE);
        try {
          ZipEntry entry = new ZipEntry(files[i].substring(files[i].lastIndexOf("/") + 1));
          out.putNextEntry(entry);
          int count;
          while ((count = origin.read(data, 0, BUFFER_SIZE)) != -1) {
            out.write(data, 0, count);
          }
        }
        finally {
          origin.close();
        }
      }
      out.close();
    } catch(IOException e) { 
      e.printStackTrace(); 
    }
  }
}
